Axle-nut.



A. H. WORREST;

AXLE NUT.

APPLICATION FlLED DEC-3. 1914.

1,1?,77. Patented Mar. 28, 1916.

INVENTOR Allorney.

Anrnnn n. wonnns'r, or LANCASTER, PENNSYLVANIA.

Specification of Letters Patent.

AxLn-NUT.

Patented Mar. 28, 1916.

Application filed December 3,1914. Serial No. 875,315.

To all whom it may concern.-

Be it knownthat I, ALFRED H. IVoRRns'r, a citizen of the United States,and a resident of Lancaster, inwthe county of Lancaster and State ofPennsylvania, have invented certain new and useful Improvemerits inAxle-Nuts; and I do hereby declare the following to be afull, clear,andexactdescriptionofthe invention, such as will enable others skilledinthe art to which it appertains to make and use the same."

My invention, relates to an improvement in axle nuts, the object beingto provide a nut that will stay at any point on the thread of the axlespindle, and which can be screwed up to compensate for wear of washersin an ordinary axle or the wear of balls'a'ndraces of a ball bearingaxle, the said nut being retained against movement byany forcetransmitted from the revolving vehicle wheel, and it consists in theparts andco'mbinati'on of parts as will be more fully explained andpointed out in the claims.

In the accompanying drawings, Figure 1 is a view in section partly inelevation of an axle spindle and box showing my improvement appliedthereto; Fig. 2 is an enlarged view in section through the nut and endof the spindle, and Fig. 3 is an end view of the nut showing the washermounted to rotate therein.

1 represents an axle box and 2 the axle spindle therein, the latterbeing threaded at its outer end as is customary and provided with one ormore, preferably a plurality, of grooves 3 extending longitudinallythroughout said threaded portion.

4 is the nut provided at its inner end with a recess concentric with thebore of the nut for the reception of the washer 5. This washer iscircular and is provided in its periphery with a circumferential groove6, into which the wall of the seat for said washer is upset so as tolock the washer to the nut, and prevent a separation of the parts, butnot interfere with the free rotation of the washer within its seat inthe nut, or the rotation of the nut independently of the washer.

The hole in the washer is concentric with the bore of the nut, and it isprovided with a series of inwardly projecting lugs 7 preferably one foreach groove 3 in the spindle, which lugs are adapted to rest within saidgroove, so that, when the nut with its attached washer is applied to thethreaded end which forms a yielding turn in the nut or of the spindle,

the washer will be held agalnst rotation,

by the engagement of the lugs 7 with the walls of the grooves 3, thusabsolutely preventing the box 1 or other rotating part of the hub fromimparting a rotary or turning movement to the nut.

The washer 5 preferably projects slightly beyond the inner end of thenut, so that when the nut is screwed home, the washer will bear againstthe box or spindle and take all the end thrust contact from the nutdirect.

In order to prevent the nut from accidentally turning I have providedsame with a pin 8 which projects into the bore of the nut and normallyrests with its inner end in one of the grooves in the spindle, the pinbeing yieldingly held in such position by the split ring spring 9, whichwill give or yield sufficiently to permit the nut to be secured to orremoved from the threaded end of the spindle, but which will offersutlicient resistance to the turning movement of the nut as to preventany such movement except when a positive power is applied in screwing iton or off.

I have shown the inner face of the nut, or that part thereof which isrecessed to receive the washer, considerably reduced in diameter, withthe fiat split ring spring 9, support for the pin 8, encircling saidreduced portion, but this detail is not essential. I would also have itunderstood that I do not confine the application of the nut and washerto an axle box which bears directly against the washer, as theimprovement can be applied to any wheel mounting and operate to preventany rotating part from transmitting its movement to the nut.

With my improvement the washer can nut can turn on the washer, but whenthe device is applied to a grooved spindle as shown, the washer will beheld from turning movement by its engagement with the groove in thespindle, and hence absolutely prevents any rotating part from impartingits movement to the nut.

It is evident that many slight changes might be resorted to in therelative arrange ment of parts shown and described without departingfrom the spirit and scope of my invention. Hence I would have itunderstood that I do not wish to confine myself to the exactconstruction and arrangement of parts shown and described but,

Having fully described my invention what I claim as new and desire tosecure by Letters-Patent, is

l. The combination of a spindle for a vehicle wheel having a threadedand grooved end, a nut having means engaging said groove whereby the nutmay be turned on or off with a wrench, but which will be held on thethreaded end against movement with the vehicle wheel, and a washercarried by the inner end of the nut, and provided with a lug to enterthe groove in the spindle, the nut being free to turn on said washer.

2. The combination of a spindle for a vehicle wheel having a threadedand grooved end, a nut having yielding means engaging said groovewhereby the nut may be turned on or off with a wrench, but which will beheld on the threaded end of the spindle against movement with thevehicle wheel, and a washer secured within a recess in the inner end0]": the nut and provided with a lug to enter the groove in the spindle,the nut being free to turn on said Washer.

3. The combination of a spindle for a vehicle wheel having a threadedand grooved end, a nut having yielding means engaging said groovewhereby the nut may be turned Copies of this patent may be obtained forfive cents each, by addressing the on or ofi' with a wrench but whichwill be held on the threaded end of the spindle against movement withthe vehicle wheel, and a washer secured within a recess in the inner endof the nut and provided with an integral lug to enter the groove in thespindle, the nut being free to turn on said washer.

4. The combination of a nut having a reduced inner end and provided witha hole through said reduced end, a pin within said hole and adapted toproject into the bore of the nut to enter a groove in the threaded axlespindle or other part to which the nut is secured, a spring carried bysaid reduced portion of the nut and yieldingly holding the pin in place,and a washer mounted to rotate in the inner reduced end of the nut andprojecting beyond the face of the said reducedend.

In testimony whereof, I have signed this specification in the presenceof two subscribing witnesses.

ALFRED H. WORREST.

Vvitnesses: 7

MABEL MAE KLINE, FLORENCE I. MENTZER.

Commissioner of Patents,

Washington, D. G.

